Infortrend trumpeted the “world’s first external SFF array” in October, so at least they were pretty sure no one else sells one. But HP might beg to differ – their MSA70 shipped at the end of last year, supporting up to 25 SFF drives in 2U. They also apparently offer a 20-drive SFF shelf for other MSA systems, but I haven’t seen one.

Like Chris, though, I’ve never seen these things outside a trade show. Is anyone using them? Or are we right in supposing that the weight, power, and heat issues associated with multiplying drive spindles offsets their performance advantages?